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Masayuki Yasumura

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Patents Grantslast 30 patents

  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,656,686
    • Issue date Feb 2, 2010
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,447,048
    • Issue date Nov 4, 2008
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,423,887
    • Issue date Sep 9, 2008
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,388,762
    • Issue date Jun 17, 2008
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,388,760
    • Issue date Jun 17, 2008
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,339,801
    • Issue date Mar 4, 2008
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,310,249
    • Issue date Dec 18, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,301,785
    • Issue date Nov 27, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,298,634
    • Issue date Nov 20, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,298,633
    • Issue date Nov 20, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resonant converter with outputs of different polarities
    • Patent number 7,285,875
    • Issue date Oct 23, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,286,374
    • Issue date Oct 23, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,242,595
    • Issue date Jul 10, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,218,534
    • Issue date May 15, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,209,369
    • Issue date Apr 24, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,193,868
    • Issue date Mar 20, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,170,761
    • Issue date Jan 30, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power circuit
    • Patent number 7,167,384
    • Issue date Jan 23, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,158,389
    • Issue date Jan 2, 2007
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,145,785
    • Issue date Dec 5, 2006
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,110,268
    • Issue date Sep 19, 2006
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,095,629
    • Issue date Aug 22, 2006
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 7,054,167
    • Issue date May 30, 2006
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 6,956,749
    • Issue date Oct 18, 2005
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 6,839,245
    • Issue date Jan 4, 2005
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power source circuit with drive frequency variably contro...
    • Patent number 6,831,846
    • Issue date Dec 14, 2004
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 6,747,883
    • Issue date Jun 8, 2004
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Switching power supply circuit
    • Patent number 6,731,521
    • Issue date May 4, 2004
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Resonant switching power supply circuit with voltage doubler output
    • Patent number 6,687,137
    • Issue date Feb 3, 2004
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Wide range zero voltage switching resonance type converter
    • Patent number 6,590,787
    • Issue date Jul 8, 2003
    • Sony Corporation
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

  • Information Patent Application

    Switching power supply circuit
    • Publication number 20080025052
    • Publication date Jan 31, 2008
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070236963
    • Publication date Oct 11, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070201251
    • Publication date Aug 30, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070195560
    • Publication date Aug 23, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070086219
    • Publication date Apr 19, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070081365
    • Publication date Apr 12, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    SWITCHING POWER SUPPLY CIRCUIT
    • Publication number 20070076443
    • Publication date Apr 5, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070035971
    • Publication date Feb 15, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20070024255
    • Publication date Feb 1, 2007
    • SONY CORPORATION
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060285367
    • Publication date Dec 21, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    SWITCHING POWER SUPPLY CIRCUIT
    • Publication number 20060239039
    • Publication date Oct 26, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060227576
    • Publication date Oct 12, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060209576
    • Publication date Sep 21, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060192774
    • Publication date Aug 31, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060187687
    • Publication date Aug 24, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060176714
    • Publication date Aug 10, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060164870
    • Publication date Jul 27, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060126364
    • Publication date Jun 15, 2006
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    SWITCHING POWER SUPPLY CIRCUIT
    • Publication number 20060114697
    • Publication date Jun 1, 2006
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060077600
    • Publication date Apr 13, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060062025
    • Publication date Mar 23, 2006
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20060037461
    • Publication date Feb 23, 2006
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20050281059
    • Publication date Dec 22, 2005
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20050270805
    • Publication date Dec 8, 2005
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20050168087
    • Publication date Aug 4, 2005
    • SONY CORPORATION
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20050099826
    • Publication date May 12, 2005
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20050068792
    • Publication date Mar 31, 2005
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power source circuit with drive frequency variably contro...
    • Publication number 20040196671
    • Publication date Oct 7, 2004
    • Masayuki Yasumura
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20040141340
    • Publication date Jul 22, 2004
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    Switching power supply circuit
    • Publication number 20030198062
    • Publication date Oct 23, 2003
    • Masayuki Yasumura
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER